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15 April
13 April

The Planetary Society/STEAMLabs: Yuri's Night

The day after the anniversary of the first human in space (often called Yuri’s Night after the Russian who accomplished the feat) you might be suffering from a bit of space withdrawal sickness. Have no fear – The Planetary Society and STEAMLabs are teaming up to give you another dose of space by putting you at the controls!
13 April

York Woods Library: Astronomy and the Extinction of Dinosuars

Join us in the Youth Hub as Prof. McCall from York University talks about what caused the extinction of dinosaurs and what could happen to us in the future.
12 April

Speaker's Night: Colliding black holes and gravitational waves: Seeing the universe through bizarre messengers

Prof. Harald Pfeiffer, Canadian Institute for Theoretical Astrophysics Video of the talk
12 April

DRAA: An Evening with Dr. Stella Kafka

Learn about how the AAVSO coordinates, evaluates, compiles, processes, publishes, and disseminates variable star observations to the astronomical community throughout the world, and other topics on variable star observation and how it contributes to astrophysics.
12 April

Commercial Space Blog: 2017 Yuri's Night World Space Party in Downtown Toronto

In Toronto, the Commercial Space Blog will be sponsoring a Yuri's Night Party at the Polish Combatants' Hall.
11 April

Riverwood Conservancy: Toronto’s Astronomical Heritage

Join Professor Emeritus John Percy for a look at how Toronto has become a world centre for astronomy research, education, and public outreach, in parallel with the development of our country, our city, and the University of Toronto.
8 April

Solar Observing (GO)

Join us at the Ontario Science Centre for our monthly Solar Observing on the TELUSCAPE observing pad. This is the area in front of the Science Centre's entrance. We use specialized telescopes that are safe to aim at the Sun. Check our home page on the Friday prior for go/no-go calls as this event is weather dependent.
8 April

North-East Astronomy Forum

See RAC's NEAF website rocklandastronomy.com/neaf.
7 April

Hamilton Amateur Astronomers: Astronomically Big Data with Pauline Barmby

This talk will focus on the past, present, and future of big data in astronomy.
5 April

Perimeter Institute: How to Bake Pi: Eugenia Cheng Public Lecture (WEBCAST)

Mathematics can be tasty! It’s a way of thinking, and not just about numbers. Through unexpectedly connected examples from music, juggling, and baking, Dr. Eugenia Cheng will demonstrate that math can be made fun and intriguing for all. Her interactive talk will feature hands-on activities, examples that everyone can relate to, and funny stories. She will present surprisingly high-level mathematics, including some advanced abstract algebra usually only seen by math majors and graduate students. There will be a distinct emphasis on edible examples.
5 April

Beaches Library: Fun with Physics: A Cartoon Look at the Nature of Reality

What would happen to you if you fell into a black hole? Why is Dark Matter so mysterious? These are some questions that will be explored with a visual showcase of cartoons and comics. A presentation by Rina Piccolo.